Skip navigation
nugush
nugush
Currently Being Moderated

Cut video - but audio starts at beginning

Jan 27, 2012 11:22 AM

Hello,

 

using Premiere CS 4.0 and I wanted to cut a video - the following happens when I want to cut with the razor tool or with in/out points in the timeline and then deleting the marked part with 'extract' (I think it's called that in english - have the german version).

So I cutted after 20s into the video and deleted the beginning and after rendering the video, the video starts correctly at 20s of the original file but the audio plays from the start of the original beginning - so it's completly out of sync.

 

The video itself is from my photo camera's video function and KMPlayer gives this for the video/codec information: http://pastebin.com/6Sw5JysF

 

 

Any ideas? I don't really want to re-encode the original file because of the time it would take and the possible quality loss.

 

Thanks

796 Views   10 Replies   Latest reply: Ann Bens, Jan 30, 2012 1:26 PM
 
Replies
  • Anaestesia
    Currently Being Moderated
    1. Anaestesia,
    Jan 27, 2012 2:54 PM   in reply to nugush
    Report

    Hi, I am not sure if I understand your problem, but if you apply the razor tool it should cut both Video and Audio tracks at the same frame. Go back to the original tool (Arrow, Selection Tool in English, V on the keyboard). Then  mark on the timeline (left click) the clip you want to delete and use delete button on keyboard. If The Video And Audio clips are linked they both should disappear. If not linked delete Video and Sound clips separately. Be sure to delete all rendering files and rerender the project. If this is the first 20 sec's you could also move the timelinecontent left to start from the beginning of timeline before rerendering. Run it to see it is OK, then export.

     

    Good luck Anaestesia

     
    |
    Mark as:
  • Ann Bens
    Currently Being Moderated
    2. Ann Bens,
    Jan 27, 2012 3:21 PM   in reply to nugush
    Report

    You might want to update to 4.2.1.

    Many bugs have been fixed.

     
    |
    Mark as:
  • nugush
    Currently Being Moderated
    3. nugush,
    Jan 27, 2012 3:26 PM   in reply to Anaestesia
    Report

    sequence.jpg

     

    I used the razor tool to cut the video so it became three parts like you can see in the image. Then I deleted part one and three - yes audio and video were linked at the same time and they both got deleted together - so that the sequence starts with part two (I moved part two to the beginning of course).

     

    Now what I got after rendering is, that the video starts with the video of part two like it should but with the audio of part one.

     
    |
    Mark as:
  • Bill Hunt
    Currently Being Moderated
    4. Bill Hunt,
    Jan 27, 2012 4:09 PM   in reply to nugush
    Report

    That is odd, and unexpected behavior. As we cannot see all of the Audio Tracks, down to the Master, is there anything on the Audio Tracks below your screen-cap?

     

    Also, if you Alt+click on the Audio Stream in your Clip # 2, to temporarily unlink it, and then Dbl-click on it, to load it into the Source Monitor Panel, which Audio do you get?

     

    As a test, you might want to go back to where you were, before you did the cutting. Repeat the cutting (Razor), and Delete the Audio & Video Streams from what will be your Clips # 1 and # 3, but do not yet Move Clip # 2. Play Clip # 2, and tell us what Auido you hear - Clip # 2's, or Clip # 1's.

     

    Good luck,

     
    |
    Mark as:
  • nugush
    Currently Being Moderated
    5. nugush,
    Jan 27, 2012 5:24 PM   in reply to Bill Hunt
    Report

    No there are no other tracks.

     

    I cut the thing again, played it at the position it was and audio was ok. Then I moved the audio+video to the beginning of the sequence and the audio is in sync with the video as it should be when I preview the sequence. The error seems to happen only when rendering the whole file.

     

    I also updated to CS 4.2.1 and Media Encoder 4.2 but now it takes ~5minutes to render a 30s piece in H264 - before it was faster. I didn't change anything in the encode options. Core2Duo W7x32 - are there any known bugs to this? Will try restarting my pc and see if it still takes so long.

     
    |
    Mark as:
  • Bill Hunt
    Currently Being Moderated
    6. Bill Hunt,
    Jan 27, 2012 5:30 PM   in reply to nugush
    Report

    No Bugs, that I can recall. CS4 got at least 3 updates, and most users were very happy with CS 4.2.1.

     

    Glad that you got the Cuts and Move made. Only thing that I can think of, would be that PrPro got confused on which Render files to use, but that is only a guess.

     

    Good luck, and sorry that the Render times increased. Do not recall that, when CS 4 was being updated, but might have missed it.

     

    Hunt

     
    |
    Mark as:
  • nugush
    Currently Being Moderated
    7. nugush,
    Jan 27, 2012 7:32 PM   in reply to nugush
    Report

    Ok, I now used MediaCoder to encode my original video to h264 and now it seems to work and I do the editing with the h264 file.

    And even the preview is not lagging anymore.

     

     

    I reinstalled the 4.0 and the encoding that took 5min before was done in 1min.

     
    |
    Mark as:
  • Anaestesia
    Currently Being Moderated
    8. Anaestesia,
    Jan 30, 2012 11:34 AM   in reply to nugush
    Report

    Hi, Seems you have found a workaround then. When you suffered the problems did you DELETE all rendered files and perform a rerendering? I adviced that and, Bill Hunt specultates if a mixup of renderfiles could be the problem... I am curious concerning this as I have sometimes suffered problems I think is due to renderfiles. When this problem happens it disappears when I delete all renderfiles in the project and rerender ... Looking forward to your reply.

     

    Anaestesia

     
    |
    Mark as:
  • nugush
    Currently Being Moderated
    9. nugush,
    Jan 30, 2012 12:13 PM   in reply to Anaestesia
    Report

    I deleted all files - the .prproj file and the folders that were created when starting a new project - started a new project and also tried a differnt video but the effect ist the same,

     
    |
    Mark as:
  • Ann Bens
    Currently Being Moderated
    10. Ann Bens,
    Jan 30, 2012 1:26 PM   in reply to nugush
    Report

    Pro does not handle the file correct.

    This file is an mpeg4 codec wrapped in an avi.

    So it might be best to convert the file.

     
    |
    Mark as:
Actions

More Like This

  • Retrieving data ...

Bookmarked By (0)

Answers + Points = Status

  • 10 points awarded for Correct Answers
  • 5 points awarded for Helpful Answers
  • 10,000+ points
  • 1,001-10,000 points
  • 501-1,000 points
  • 5-500 points